879709231 has 4 divisors (see below), whose sum is σ = 880256232. Its totient is φ = 879162232.

The previous prime is 879709163. The next prime is 879709273. The reversal of 879709231 is 132907978.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 879709231 - 2⁹ = 879708719 is a prime.

It is a super-2 number, since 2×879709231² = 1547776662213222722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879709031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271081 + ... + 274306.

It is an arithmetic number, because the mean of its divisors is an integer number (220064058).

Almost surely, 2^879709231 is an apocalyptic number.

879709231 is a deficient number, since it is larger than the sum of its proper divisors (547001).

879709231 is a wasteful number, since it uses less digits than its factorization.

879709231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547000.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 879709231 is about 29659.8926329817. The cubic root of 879709231 is about 958.1784146069.

The spelling of 879709231 in words is "eight hundred seventy-nine million, seven hundred nine thousand, two hundred thirty-one".